Spectrogram
n. 光谱图, 声谱图\\n[化] 光谱图
🗣️ 情景例句
I always wanted to travel to Europe but I was afraid that language would be a problem.
我总想去欧洲旅游，但我又怕语言是个问题。
The wolf may lose his teeth, but never his nature.
江山易改，本性难易。
We should not only know the theory but also how to apply it to practice.
我们不仅要知道理论，还要知道怎样把理论应用于实践。